[gnome-themes-standard] Add more contrast in tab labels

[William Jon McCann <mccann src gnome org>]

commit 85187279a33e2bac1200b8bd5e0bb510acfdc2a6
Author: William Jon McCann <william jon mccann gmail com>
Date:   Fri Jan 24 13:48:26 2014 -0500

    Add more contrast in tab labels

 themes/Adwaita/gtk-3.0/gtk-widgets.css |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets.css b/themes/Adwaita/gtk-3.0/gtk-widgets.css
index ac9218f..8603543 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets.css
@@ -1816,19 +1816,20 @@ GtkLinkButton.button:active {
 
 .notebook tab,
 .notebook tab:backdrop {
+    border-color: shade (@borders, 1.15);
     border-width: 0px;
     background-image: none;
     background-color: transparent;
 }
 
 .notebook tab GtkLabel {
-    color: mix (@theme_fg_color, @theme_bg_color, 0.50);
+    color: mix (@theme_fg_color, @theme_bg_color, 0.40);
     font-weight: bold;
 }
 
 .notebook .prelight-page,
 .notebook .prelight-page GtkLabel {
-    color: mix (@theme_fg_color, @theme_bg_color, 0.33);
+    color: mix (@theme_fg_color, @theme_bg_color, 0.15);
 }
 
 .notebook .active-page,